NOTE 1: For codes containing "ca", "us", "au", "uk", or "row", simply interchange those letter codes depending on your location. Each of these can be used to turn a one-time use code into a multi-use code.

NOTE 2: You do have to make sure that you are buying a non-agency book. E-books that are non-agency generally include:
- e-books with two prices listed (ie. "List Price" and "Our Price")
- e-books that end in something other than ".99" (ie. $9.91, $5.57, etc.)
- most graphic novels
- most "Just for Kobo Vox" books
- most very inexpensive e-books (ie. $0.95 to $2.99)
- e-books by very small/niche publishers.A list of non-agency publishers is provided in this post

25OFFQ430JAN Might be restricted by country. Worth a try.35NOV Might be restricted by country or book list. Worth a try.40DECUSA ListCA List30OCT30JUN 30% off books on the list.save90bk from this list, possibly for new accounts only.50SUN - in Canada (perhaps other countries) most or all discountable books50JUN - in USA, Canada and other countries until 27th June, some books, not othersComeback3cl23
Comeback6sq52
Comeback7cr53

Advice from Kobo about Discount Code:
Promo codes are discounts that can be applied to specific books or magazines in the Kobo Store. Some promo codes can be redeemed only once, while others have unlimited use within a specified time frame.

Due to publisher restrictions and territorial limitations, promo codes cannot be applied to all books or magazines. It is also important to note that promo codes can not be used with the Quick Buy option at checkout.

2. The book you are purchasing is eligible for a promo code. To confirm this:

- Go to www.kobobooks.com
- Sign into your Kobo Account if you are not signed in already
- Search for the book you wish to purchase
- Click on "Items Eligible for Promo Code Use" on the left side of the window
- Only the books eligible for promo code use will remain in your search result

3. Apply the promo code correctly by doing the following:

- Click the Buy Now button to start the checkout process.
- Click the Use standard checkout link if you have Quick Buy enabled.
- On the Purchase Confirmation Screen, you will see the Have A Promo Code? box.
- Enter the promo code in the box and click the blue + button to apply your promo code.
- If the promo code is valid and can be applied to the book or magazine you wish to purchase, the discount will be applied and shown in the pricing column on the right.
- Complete the remaining steps to finish the purchase process.

Please keep in mind that some promo codes work only on a selected list of books. There is usually a button that says "Browse Now" or "View all Sale Items".

Good question. When the code at the top of this post didn't work, I just googled 'Kobo discount codes Canada' and 4 or 5 popped up and this was the first one that actually worked. That is why I have no idea how long it is valid for or for how many books. I thought this one might have originated through Facebook but couldn't find a reference to it on the Kobo page on Facebook. I would be interested in knowing the answer to this question as well.

FBREADING worked for me in Canada last night. You do have to make sure that you are buying a non-agency book. Agency books generally have only one price listed. If a book has two prices, it is not subject to Agency price fixing and will usually/always work with coupons.